A:The Headphones compatible with kinds of Media Devices which have 3.5mm Jack as Apple Devices | Androids Smartphone | Windows Phone | MP3/MP4 Player | Portable Music Player (Remote control can’t work for some MP3/MP4 Player)Q: Does it work for Hifi Music?A:Yes,with High Quality Driver and Suitable Sound Chamber, it has good sound performance.Q: What is the remote for?A: The remote answers phone calls for the Phone. It can pause/play/skip for music.

High sound quality for the price. Nice packaging. Excellent bass without compromising clarity of the vocals.